exam Maths Puzzle Numerical Ability

A fishing boat traveled 3 hours against a 6 km/hr current. The return trip took only 2 hours. Find the speed of the boat in still water.

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exam Other Question

If a clock loses 2 minutes every 15 hours how much times does it lose after 2 hours? Need help on how to solve. Answer is 4/15 Graph the following linear equation:

y=-2x-1


Any help with this one would be great. Thank you so much.